Even with his eyes closed, Zhao Qiang could find the path to the right goal from the encirclement of thousands of zombies, although the situation inside the advance base was complicated, and the patrols shuttled back and forth, they could not stop Zhao Qiang from running towards freedom.

The purpose of his original visit to Beijing has been achieved, and the advance base has obtained his own blood samples, whether they can research the antidote from it depends on their own creation, if it weren't for the actions of the advance base that Zhao Qiang couldn't accept, he wouldn't be hiding in this dark corner and waiting for an opportunity now.

The patrol team has doubled in density compared to before, and surveillance footage near the gate of the forward base shows that Zhao Qiang did not appear in this area after he fled, so he stepped up the search of the base.

Zhao Qiang hid in the ventilation pipe, crawling in the direction of the aisle in the direction of the gate, damn the three iron gates, Zhao Qiang recalled that when he first entered the base, the three heavy iron gates and the long passage felt a headache, there should be the only exit from the advance base, and now it must be heavily guarded, and even a fly may not be able to fly out.

When he was in the equipment warehouse, Zhao Qiang had carefully studied the new equipment in the advance base, and after grabbing the gun, Zhao Qiang immediately removed the fingerprint recognition system on the gun, and the gun could be used, but the bullet was only a full magazine.

"Turn left at the next fork." Just as Zhao Qiang hesitated, thinking about how to break through the interception of the pursuers, a voice came from the small hole in the wall of the ventilation duct.

"Who?" Zhao Qiang asked vigilantly, the voice sounded in his ears, there was no one in the narrow ventilation pipe except Zhao Qiang, and the sound could only be from a speaker installed in the ventilation pipe.

"It doesn't matter who I am, you just need to know that I'm on your side." The synthesized voice sounds very awkward.

"How do I know if you're on my side?" Zhao Qiang looked around, trying to keep his voice as low as possible, but even so, it still sounded so harsh in the ventilation pipe.

"The proof that you can still hide in this broken ventilation pipe is proof!" Even with the synthesized voice, Zhao Qiang heard a hint of anger.

The ventilation ducts are in all directions, without any references, and hiding in them can indeed avoid a momentary search, but it is also difficult to find a way to escape. Under the guidance of the mysterious man, Zhao Qiang shuttled through the labyrinthine ventilation pipe all the way unimpeded.

"A bunch of rubbish! I haven't found it yet! He Chang roared, half an hour has passed since Zhao Qiang's disappearance, the gate of the advance base has been heavily guarded as early as the first time, and there is no sign of abnormal activity in the elevator inside, in such a closed space, even a fly can't fly out, but hundreds of troops have searched for half an hour in this palm-sized area, and they haven't even seen Zhao Qiang's shadow, no matter how good he is, he can't help it at this time, "You say, what's the use of me raising you waste!" ”。

There was silence in the entire combat command room, only the chief was pacing back and forth, and the other officers and staff were silent one by one, and they didn't dare to come out, and no one dared to face the anger of the chief at this time.

"Where, you say, will he be ......" An adjutant plucked up his courage and cautiously pointed to the ceiling.

"If you have something to say, let it go, and let it go, and don't spit out there!" Under the rage, where can he care about thinking too much, he yelled impatiently.

"Report where!" The adjutant secretly thought that if he guessed correctly this time, it would be a great achievement, not to mention the reward for meritorious deeds, at least this little life was saved! Standing up with a snap, he said, "I suspect that the enemy has infiltrated our ventilation ducts!" ”

"Ventilation ducts?" He Chang looked up at the air outlet on the ceiling, and suddenly realized: "Immediately pass my order to let people enter the ventilation duct, even if you dismantle the ventilation pipe, you must also find out the person for me!" ”

Not everyone can get in the ventilation pipe. After Zhao Qiang came to the forward base, he was always dressed in civilian clothes, and the equipment on his body had already been thrown in the garbage heap, and even the gun in his hand was temporarily snatched, otherwise, with Zhao Qiang's stature and a full set of equipment, I am afraid that he will be stuck in a corner and unable to move.

The search team soon found the footprints left by Zhao Qiang's operation in the ventilation pipe, and immediately launched a search operation along the footprints.

Although the soldiers who advanced to the base were five big and three thick men, they knew that Zhao Qiang had a gun in his hand, and in the narrow space, there was no room to dodge, and the bullets were only hard to resist, so no one was willing to rush into the ventilation duct, and one by one they put heavy bulletproof vests on their bodies, and they also wore the latest Kevlar helmets.

Naturally, the fully equipped soldiers could not move freely in the narrow ventilation pipe, and many soldiers could not even drill into the ventilation pipe, so they easily got in, and they were stuck in the corner and couldn't move, blocking the way of the people behind them.

After a long struggle, the lightly armed soldiers finally found the trajectory of Zhao Qiang's movements in the ventilation pipe, and followed these tracks all the way, but the pursuers stopped in a vertical ventilation shaft.

The diameter of the ventilation shaft is 5 meters, the walls around it are very smooth, and there is a long escalator leading to the top of tens of meters high near the entrance, which is not a problem, the problem is that in the ventilation shaft, there will be a huge fan every 3 meters, if you want to reach the top through the escalator, you must pass through these giant fans that are constantly rotating, and the distance between the escalator and the fan will never exceed 10 centimeters, that is to say, a normal person, if you don't stop those fans, it is absolutely impossible to pass through the fan blades, Reaching the top vent.

In fact, this road is an escape passage developed by the Kirin people in order to escape quietly, and from the original design drawings, in order to prevent intruders from entering the base from here, a large number of traps are set up in the ventilation ducts, which is why the chief and the search team did not consider the ventilation pipes.

Due to the betrayal of the traitors, the Qilin people escaped through bloody battles, and this secret passage that they had spent countless efforts to open did not come in handy, and to this day, only a few people in the advance base knew about the existence of this passage, and finally achieved Zhao Qiang's escape.